130345152021 has 32 divisors (see below), whose sum is σ = 232305484800. Its totient is φ = 70562787120.

The previous prime is 130345151999. The next prime is 130345152127. The reversal of 130345152021 is 120251543031.

130345152021 is a `hidden beast` number, since 1 + 3 + 0 + 3 + 451 + 5 + 202 + 1 = 666.

It is not a de Polignac number, because 130345152021 - 2⁹ = 130345151509 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130345150021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18145275 + ... + 18152456.

It is an arithmetic number, because the mean of its divisors is an integer number (7259546400).

Almost surely, 2^130345152021 is an apocalyptic number.

It is an amenable number.

130345152021 is a deficient number, since it is larger than the sum of its proper divisors (101960332779).

130345152021 is a wasteful number, since it uses less digits than its factorization.

130345152021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36297766 (or 36297760 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 130345152021 its reverse (120251543031), we get a palindrome (250596695052).

The spelling of 130345152021 in words is "one hundred thirty billion, three hundred forty-five million, one hundred fifty-two thousand, twenty-one".